<!DOCTYPE html>
<html>
    <head>
        <title>历史时间轴</title>
        <style>
            #box {
                width: 90%;
                height: 800px;
                border: 1px solid #ccc;
            }
        </style>
    </head>
    <body>
        <div id="box">box</div>
    </body>
</html>
